Gas-check for bunsen burners.



No. 732,981. V PATENTED JULY. 7, 1903. L. T. WEISS.

GAS CHECK FOR BUNSEN BUR'NERS.

APPLICATION FILED NOV. 7, 1902.

H0 MODEL.

WITNESSES: EW INVENTOH @Y Q/Q AV IaaoJT/Yau'afi.

A TTOHNE) Patented July '7, 1903.

met.

ATENT LOUIS r. WEISS, OF NEW YORK, N. Y., ASSIGNOR TO ALFRED A. URY, ori NEW YORK, N. v.

GAS-CHECK FOR BUNSEN BURNERS.

SPECIFICATION forming part of Letters Patent No. 732,981, dated July 7,1903.

Application filed November 7, 1902. Serial No. 130,377. (No model.)

To all whom it may concern:

Be it known that I, LOUIS T. was, a citia t of a spring-pressed slidewhich may be moved to control the amount of gas which is per-.

mitted to flow into the burner, the improvement for the most partresiding in the means for securing and adjusting the spring and slide tothe burner-tube.

For a more detailed description of the best embodiment of .my inventionknown to me reference is to be had to the drawings forming a part ofthis specification, in whichi Figure 1 is an elevation of a portion ofthe tube and nipple provided with my improvement. Fig. 2 is a similarview of the same, taken at right angles to Fig. 1. Fig. 3 is a sectionon the line 3 3, Fig. 2, looking in the direction of the arrows.

partially closed. Fig. 5 is an elevation of the tube. Fig. 6 is a planof the spring. Fig. 7 is a plan of the slide. of the spring. Fig. 9 is aplan of the screw plug at the bottom of the tube. Fig. 10 is anelevation, and Fig. 11 is a cross-section, of the same, taken on theline 11 11 of Fig. 10 looking in the direction of the arrows.

Throughout the various views similar reference characters designatesimilar parts. The lower portion of a Bunsen-burner tube isdesignated-by the character 1, and adjacent to the lower end of thistube are the usual 5 openings 2 and 3, through which air is admitted tothe tube. These openings are substantially rectangular, except that theopenings 2 are provided with enlargements 4. and 5 in their lowerportions, forming the pro- "jections 6 and 7, as is clearly shown inFig. 5. While I have shown and described two en- Fig. 4 is a Viewsimilar to Fig. 3, except that the slide is shown.

Fig. 8 is an edge View largements 4 and 5, it is not necessary to havemore than one. Below the openings 2 and 3 are the internal screw-threads8, which are indicated in dotted lines in Fig. 2. The upper portion ofthe tube is not shown, as that forms no part of my invention, which maybe applied to any Bunsen burner or similar article, and I preferablyapply my improvement to those Bunsen burners which are used withWelsbach incandescent gas-lamps.

The spring 9 rests against the shoulder 6 in the upper portion of theenlargement 4, and this spring is provided with shoulders or projections10, which closely fit the bore of the tube, as shown in Figs. 3 and 4.,and these shoulders divide the spring into portions of unequal breadth,the greater not exceeding the length of the enlargements 5, and thelesser closely fits the enlargements 4,-and in the center of the springis a perforation 11. The spring 9 is a leaf-spring, which may be madeout of any suitable material and is bent, as shown in Fig. 8.

In Fig. 7 is shown the slide 12, which is preferably made out of a flatpiece of metal and provided with a central perforat-ion 13 and shouldersor projections 14. The shape of the slide is substantially that of thespring, except that it is straight and not bent and is longer than thespring, and the shoulders 14. on the same edge are nearer together thanthe corresponding shoulders 10 of the spring in order that the slide 12may be moved in the direction of its length in the bore of the tube.

A screw nipple or plug 15 with threads 16 engages the threads 8 in theend of the bore of the tube 1. Below the threads 16 the nippie isenlarged at 17 to form the shoulder 18, o

against which the lowerend of the'tube rests, and its upper surface 19is a plane which forms a bearing for the slide 12. In the center of thesurface or seat 19 is an opening 20, which connects with thehollowinterior 21 of ()5 the plug, and on the walls of this interior arethreads 22, which enable the burner to be secured to any suitablegas-fixture.

23 is a set-screw which engages the threads 16 of the plug or nipple 15,thus securing said nipple in any desired position.

The parts are assembled in the following manner: The spring 9 is passedinto the enlargement 5 of the tube 1 until the shoulders 10 are clear ofthe projections 7 and then it is forced upwardly until it reststransversely of the tube against the projections 6, the'ends of thespring flaring upwardly and outwardly. The slide 12 is then inserted ina similar manner and moved upwardly until it rests against thelowerconvexed surface of the spring 9. The plug or nipple 15 is insertedand screwed to its proper position, as indicated in Figs. 1 and 2, thussecuring all the parts in their proper positions, so that the openings20 and 11 will always register, and the opening 13 may be moved eitherinto or out of alinement with them, as shown in Figs. 8 and at, or intoany intermediate position, thus forming between the slide 12 and surface19 avalve which will regulate by the size of the opening the amount ofgas that enters the tube. The tension on the spring 9 may he adjusted byturning the plug or nipple 15 so that the slide 12 is forced into moreor less intimate contact with the spring 9 and so moves with greater orless freedom on the surface 19.

An advantage of this construction is that the gas issues through thereduced opening with increased velocity, thus forming a jet which drawsair with greater facility through the openings 2 and 3. This advantagewould not be obtained if the passages were crooked or tortuous, as isthe case where gas is regulatedby an ordinary cock.

While I have shown and described the best known embodiment of myinvention, I wish it to be understood that many other forms areconceivable, which are covered in the following claims.

I claim- 1. In a gas-check or similar article, a tube, a springlaterally secured to the same, and spring controlled and laterallymovable means connected with the spring to regulate the flow of gasthrough the check.

2. In a gas-check or similar article, a tube, a spring laterally securedto the same, a spring-con trolled and laterally-sliding means connectedwith the spring to regulate the flow of gas through the check.

3. In a gas-check or similar article, a tube, a spring secured to thesame, and a slide pressed by said spring and regulating the flow of gasthrough the check.

4. In a gas-check or similar article, a tube and a spring secured to thesaid tube, a slide and a seat, said spring tending to press said slideagainst said seat.

5. In a gas-check, a tube, a perforated spring secured thereto, a slideand a bearing for said slide.

6. In a gas-check or similar article, combination of a tube, a seatsecured theret0,'a perforated slide moving on said seat, and a springpressing said slide and surface toforated seat, said slide restingbetween said perforated seat and spring.

8. In a gas-check or similar article, a tube with a perforated springsecured thereto, a seat and a perforated slide between said spring andseat.

9. In a gas-check or similar article, a tube with a perforated springsecured thereto, a perforated seat beneath said spring and a slidebetween said spring and seat.

10. In a gas-check or similar article, a tube with a spring securedthereto, a perforated seat beneath said spring, and a perforated slidebetween said spring and seat.

11. In a gas-check or similar article, a tube with a perforated springsecured thereto, a perforated seat beneath said spring and a perforatedslide between said spring and seat.

12. In a gas-check or similar article, a tube, a perforated springsecured thereto, a perforated slide beneath said spring, a perforatednipple screwed into said tube, the upper portion of said nipple forminga bearing-surface for said slide.

13. As an article of manufacture,'a tube for Bunsen burners andthe like,provided with openings and projections in said openings, and a springand sliding bearing against said projections.

14. As an article of manufacture, a tube for Bunsen burners and thelike, provided with openings, projections in said openings againstwhicha spring and slide may rest and screw-threads formed in said tubeadjacent to said openings.

15. In a gas-check or similar article, a tube provided with openings,projections in said openings, a spring seated against said projections,and means for securing said spring in place.

16. In a gas-check or similar article, a tube provided with openings,projections in said openings, and a spring and a slide engaging saidprojections.

17. In a gas-check or similar article, a tube provided with openings,projections in said openings, a spring and slide engaging saidprojections against which'the, slide is pressed by the spring.

18. In a gas-check or similar article, a tube with openings, withprojections therein, a spring and a slide engaging said projections, anda nipple in said tube securing the slide and spring in place.

19. In a gas-check or similar article, a tube with a spring securedthereto, and means external to said tube for changing the tension of thespring.

20. In a gas-check or similar article, a tube with a spring securedthereto, and rotary means external to said tube for changing the tensionof the spring.

21. In a gas-check or similar article, a tube with a spring securedthereto, and a nipple for changing the tension of the spring.

22. In a gas-check or similar article, a tube with openings therein, aspring resting in said openings, and projections on said spring engagingthe walls of said tube;

23. In a gas-check or similar article, a tube with openings therein, aslide resting in said openings, and projections on said slide whichlimit its movement by engaging the walls of said tube. v

24. In a gas-check or similar article, atube p with openings, 3. springwith projections resting in said openings, the projections engaging thewalls of thetube, and a slide also resting in said openings.

25. In a gas-check or similar article, a tube with openings, a springwith projections resting in said openings, the said projectionsensubscribing witnesses.

LOUIS T. WEISS. Witnesses:

O. E. EDWARDS, J r., B. S. WISE.

